Parsing demographics and the 2012 presidential race

… Obama is winning a declining share of what is a steadily declining share of the electorate. … The coalition that Obama began to assemble in his first campaign and continues to focus on in his reelection bid depends less on maintaining his share of the white working-class vote and more on maximizing his support among the rising share of the electorate accounted for by minorities. [ cont. ]

Dan Balz, Washington Post